In a phone interview Friday, Young said he was wowed that night by Kaepernick’s array of throws: fastballs, touch passes, right-on-the-hands rainbows. “To me that was the most impressive thing about the night,” Young said. “It was a great night. But all that ability I saw there — it’s something that you realized it can be a lot more than one night. You can make a career out of all those throws.” …

Sign, practice and play. That will be the whirlwind order of events for 49ers quarterback Seneca Wallace, who will take snaps in Sunday’s preseason game against the Vikings three days after he signed a one-year contract. …

Colt McCoy has said learning the 49ers offense isn’t easy, but the solution for cracking the code is simple: It requires hard work and time. “I think when those two things come together,” he said, “you’ll be where you want to be.” …